100 + 2x = 12x - 10
plsplsplspls help

Answers

Answer 1

Answer:

x=11

Step-by-step explanation:

100+2


Related Questions

Alexis had $25.00 to spend on amusement park she spent 25% of her money on games she spent 1/2 of her money on food she spent $6.00 on a stuffed animal. How much money did Alexis have left?

Answers

Answer:

Step-by-step explanation:

25% of $25 = 0.25×$25 = $6.25

½ of $25 = ½×$25 = $12.50

$25 - $6.25 - $12.50 - $6 = $0.25

What is the height of the pile of books located on the lawn?

Answers

Step-by-step explanation:

[tex] \tan( \alpha ) = \frac{8}{18} = \frac{8 + 15}{x} \\ \frac{8}{18} = \frac{23}{x} \\ 8x = 414 \\ x = 51.75[/tex]

The school board claims that 85% of the over 1,600 families with children in their district send their
children to public school. Skeptical of this claim, a private school administrator takes a simple random
sample of 120 families with children in the district and asks them whether they send their children to
public school.
Assuming the school board's claim is correct, what is the probability that the administrator's results are
within 5 percentage points of the school board's 85% claim?

Answers

Answer:

P(0.8<  p ^ <0.9)≈0.87

Step-by-step explanation:

trust me

The probability that the administrator's results are within 5 percentage points of the school board's 85% claim is approximately 0.919.

What is probability?

Probability is defined as the possibility of an event being equal to the ratio of the number of favorable outcomes and the total number of outcomes.

To find the probability that the administrator's results are within 5 percentage points of the school board's 85% claim, we need to find the probability that the sample proportion of families sending their children to public school is between 80% and 90%.

We can use the normal approximation to the binomial distribution to calculate this probability. Since the sample size is large (n = 120) and the population proportion is not too close to 0 or 1 (p = 0.85), we can use the normal approximation.

The mean of the sampling distribution is the population proportion, which is 0.85 in this case. The standard deviation of the sampling distribution is given by the formula:

SD = √((p × (1 - p)) / n)

Plugging in the values, we get:

SD = √((0.85 (1 - 0.85)) / 120)

= √(0.01225 / 120)

= √(0.0001010417)

= 0.0101

Now we can use the normal distribution calculator to find the probability that the sample proportion is between 0.80 and 0.90. Plugging in the mean (0.85) and standard deviation (0.0101) and the upper and lower limits (0.80 and 0.90), we get a probability of 0.919.

Therefore, the required probability is approximately 0.919.

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Which line is congruent to which

Answers

Answer:

QO and QN

Step-by-step explanation:

The little lines mean they’re congruent. The arrows tell you PO and MN are paralle. The curved line means the angles are congruent.

Hope that helped!

Will give brainliest! What is the range for the third size of the triangle 2,10?

Answers

Answer:

8 < x < 12

Step-by-step explanation:

Given 2 sides of a triangle then the third side x is in the range

difference of sides < x < sum of sides , that is

10 - 2 < x < 10 + 2

8 < x < 12

The cash price of a bike is $3000. The bike can be bought on hire purchase by making a 25% down-payment and monthly payments of 125 for 2 years. The hire purchase is

A) $3000
B) $750
C) $ 3750
D) $125​

Answers

25% downpayment of $750 + $125 x 24 months

= $3750

Answer:

C) $3750

Step-by-step explanation:

We can start by calculating the down payment. To do this we can just simply calculate 25% of 3000, which equals 0.25*3000=7500. Now we can find out how much money it will cost to pay not including the down payment. $125 monthly for 2 years= $125 monthly for 24 months= 125*24= $3000. Finally we add the downpayment and the total cost of monthly payment to get $7500+$3000=$3750.

What value of x will make the equation below true?
7(4 + x) = 84

Answers

x=8 x is equal to eight

Step-by-step explanation:

4+8=12

12×7=84

Nico buys an item that is $15.00, and uses a 10% off coupon. How much does he save by using the coupon? *

Answers

Answer:

$1.5

Step-by-step explanation:

10% = 0.10

$15.00 x 0.10 = $1.5

Nico pays $13.50 and saves $1.50

(-8,-5) and (-7,-4) find the slope?

Answers

Answer:

(1, 1)

Step-by-step explanation:

(-8, -5) >> (x1, y1)

(-7, -4) >> (x2, y2)

(y2 - y1)           -4 - (-5) = 1

----------- >>

(x2 - x1)           -7 - (-8) = 1

x always goes first in a coordinate, so:

(1, 1)

Hope this helped ;)

A family eats a t a reastaurant. The bill was $54 . The family leaves a tip and spends $60 total. How much was the tip as a percentage of the bill? (Round to the nearest whole percent)

Answers

Answer:

3%

Step-by-step explanation:

URGENT !!!!!!! Please answer correctly !!!!!!!!!!!! Will be marking Brianliest !!

Answers

Answer:

A=79.2[tex]in^{2}[/tex]

Step-by-step explanation:

A=a+b/2*h

A=5.4+14.4/2*8

A=19.8/2*8

A=9.9*8

A=79.2

URGENT !!!!!!!!! Please answer correctly !!!!! Will be marking Brianliest !!!!!!!!!!!!!!!!

Answers

Answer:

72 Sq m

Step-by-step explanation:

Area of trapezoid

[tex] = \frac{1}{2} (16.5 + 7.5) 6 \\ \\ = 24 \times 3 \\ \\ = 72 \: {m}^{2} [/tex]

Answer:

area of isosceles trapezoid = 72 m square

Function g is an exponential function passing through points (3,-53) and (5,-41). Which statement is true over the interval [3,5]?

Answers

Answer: The function is increasing in the given interval.

Step-by-step explanation:

The options are not given, so i will answer in a general way.

We have an exponential function g(x) such that:

g(3) = -53

and

g(5) = -41

From this we can only conclude that in the interval [3, 5] the function is increasing, because g(5) > g(3) and the general form of a exponential function is:

g(x) = A*(r)^x + C

Notice that we have two equations and 3 variables in the equation, this means that we can not find an exact solution for g(x) (we need the same number of independent equations than variables)

Then we can not conclude anything else for g(x)

14. Two line segments are congruent if they have........... length.

Answers

The same length, if something is congruent it means they’re the same

What is the measure of DC?? Show work..

Answers

Answer:

I have no idea , but it is a obtuse / 190 degree angle

Hmmm.... i think its 180 OR 185

Step-by-step explanation:

Please answer!!! I’ll make brainliest

Answers

Answer: 30

Step-by-step explanation:

1. Use the Pythagorean theorem ([tex]A^{2} +B^{2} = C^{2}[/tex])

 

[tex]18^{2} +24^{2} =C^{2} \\324 + 576 = C^{2} \\900 = C^{2} \\\sqrt{900} = \sqrt{C^{2} } \\30 = C\\[/tex]

Step-by-step explanation:

so in this case, you use the pythagoras theorem:

hypotenuse= opposite squared + adjacent squared

since we don't have a hypotenuse, let's name is H

soo it will be

H= 18 squared + 24 squared

H = 324+ 576

H= 900

so you find the square root of 900 which is 30

so, therefore the answer is 30

What is mArc SU?

49°
77°
98°
161°

Answers

Answer:

77°

Step-by-step explanation:

By the property of intersecting tangent and secant outside of a circle:

[tex]21 \degree = \frac{1}{2} ( 119 \degree - \widehat{SU} ) \\ \\ 42 \degree = 119 \degree - \widehat{SU} \\ \\ \widehat{SU} =119 \degree - 42 \degree \\ \\ \widehat{SU} =77\degree \\ \\ [/tex]

The mArc SU is option (B) 77 degrees

What is Tangent?

A straight line or plane that touches a curve or curved surface at a point, but if extended does not cross it at that point.

What is secant ?

A secant is a line that intersects a circle in exactly two points.

Here,

By the property of intersecting tangent and secant outside of a circle:

[tex]T=\frac{1}{2}(RU-SU)[/tex]

Here

T= 21 degrees

RU is the mArc RU = 119 degrees

Then,

[tex]21 =\frac{1}{2}(119-SU)\\ 42=119-SU\\SU=119-42[/tex]

SU = 77 degrees

Hence, the mArc SU is option (B) 77 degrees

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Find the value of x.

Answers

Answer:

16

Step-by-step explanation:

Kendra rides her bike to school each day. It takes her 10 minutes to ride 30 blocks. What unit rate expresses the speed of Kendra's bike ride?

A. 2 blocks per minute
B. 3 blocks per minute
C. 4 blocks per minute
D. 10 blocks per minute

Answers

Answer:

B. and also i take it ur dating neko now XD

Step-by-step explanation:

Element X decays radioactively with a half life of 9 minutes. If there are 860
grams of Element X, how long, to the nearest tenth of a minute, would it take
the element to decay to 94 grams?

Answers

Answer:28.7 minutes

Step-by-step explanation:

Quick prints makes custom t-shirts. They charge $10 for each t-shirt ordered plus a $5 design fee. Which situation best represents y, the total cost to order x t-shirts?

Answers

Answer:

y = 10x+5

Step-by-step explanation:

The price of each T-shirt = $10

Design fee on each T-shirt = $5

We need to find the expression for the total cost. Let the total cost be y. So,

Let he has ordered x T-shirts. So,

y = 10x+5

Hence, this is the required solution.

plz i got need help here​

Answers

Answer:

The parallelograms having perpendicular diagonals are square and rhombus so

e. b and d are true.

Hope it will help :)❤

Answer:

I think Rhombus

Step-by-step explanation:

Which expression is equivalent to 6(5m-7)

a 11m-13
b 11m-42
c 30m-13
d 30m-42

Answers

Answer:

30m-42 (D)

Step-by-step explanation:

Let's evaluate the expression,

6(5m-7)

30m-42

If you have any questions, let me know!

for ssc
1: a man walks 7km in 2 hours and 2 km in 1 hour in the same direction.what is the man's avarage speed for the whole joumey?
salamat po kong sino makaka sagot​

Answers

Answer:

Average speed is 3 kilometers an hour

solve liner equation for they variable
-6x+7=2x+10-8x-3

Answers

Answer:

x is infinite

Step-by-step explanation:

-6x+7=2x+10-8x-3

reduce:

-6x+7=7-6x

7-6x = 7-6x

x = x

x is infinite

Please help I’ll make Brainly answer!!

Answers

Answer:

what they said ^^

Step-by-step explanation:

I did this so no one puts the incorrect answer

If the area of a rectangle is


(15x^2 - 16x - 15) square feet,


and its length is (3x - 5) feet,


find its width.

Answers

Answer:

Step-by-step explanation:

width = area ÷ length = 5x+3

45% of 81.2 is a number between?

Answers

Answer:

36.54

Step-by-step explanation:

that's what it is so just do like 36-37

Answer:

45% of 81.2 is 36.54

Step-by-step explanation:

There are two children in the Patel family.
They are twins of the same age.
What is the range of their ages?

Answers

Answer:

range = highest - lowest

x - x = 0

Hope it helps

Please mark me as the brainliest

Thank you

If there are two children in the Patel family. They are twins of the same age. Then zero is  the range of their ages

What is Ratio?

A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0.

Given,

There are two children in the Patel family.

They are twins of the same age.

Let x be the age of two children.

As they are twins so the age of children's is same.

The formula of range is highest minus lowest.

range = highest - lowest

Range=x - x

Range =0

Hence, the range of their ages is 0.

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Solve for the ? angle

Answers

Answer:

50

Step-by-step explanation:

since all angles add up to 180

and since this is a right triangle the square in the corner is 90 degrees

so 40+90+x=180

130+x=180

subtract 130 from both sides

130-130+x=180-130

x=50

Hope that helps :)

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